Gong Xian started when he heard what Cheng Sheng said. "'Other sources of power'?" he muttered as his eyes slowly widened when he realized something, especially with the latter half of what Cheng Sheng said. "a way to control the power of faith'?!" he exclaimed as his mouth fell open in disbelief. He knows that aside from being a skilled doctor, Cheng Sheng is also a great mage. So, he doesn't doubt Cheng Sheng's words.
No wonder… no wonder that his shifu was very afraid earlier and even almost pushed them all away if not Ho Yue was very weak due to the torture that he had gone through Ho Chu's hands. But, what Ho Yue is afraid of is not Ho Chu… but Ho Yue is afraid of Ho Chu's power!
